EV Battery Issues and Design Considerations

Overview

Due to their superior cycle performance, low self-discharge, high specific capacity and voltage, absence of memory, and wide operating temperature range, lithium-ion batteries (LIBs) outperform conventional battery systems. LIBs have thus gained popularity and drawn more attention due to their excellent performance and significant potential for offering effective energy density and environmental sustainability. 

However, their poor safety performance currently poses a substantial barrier to the further development of the LIB market and its significant applications for EVs.  

In this whitepaper, we discuss: 

• Internal Factors (Battery chemistry, operating conditions, abuse tolerance) affecting Battery Safety 
• External factors (Temperature and Voltage) that affect the battery performance 
• Various LiB Failure Situational Analysis 
• Elements to be considered for Battery Design 

A vigilant and effective Battery Management System (BMS) plays a significant role in determining battery performance and battery pack safety.